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RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448337 | Fits 2021-2025 Ford F-150 6' 7" Bed (78.9")

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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Nov 16
Order within 9 hours and 26 minutes
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Style: BAKFlip MX4


Size: 6' 7" Bed


Features

  • Fits 2021 - 2024 Ford F-150 6' 7" Bed (78.9")
  • Made in the USA with Global Materials
  • ULTIMATE SECURITY | The BAKFlip MX4 tonneau cover has durable aluminum panels that automatically latch as the cover is partially or fully closed, and is fully locked once your tailgate is closed
  • STYLISH MATTE FINISH | Featuring matte-finished aluminum panels, protecting against marks, scratches and UV damage; as well as premium upgrades to the perimeter seals and hardware
  • 100% BED ACCESS | Operate this cover closed, folded or flipped up, all without covering the 3rd brake light. Paired with a dual action tailgate seal for tailgate operation open or closed

Description

America’s best-selling truck bed cover just got even better.Introducing the BAKFlip MX4 Gen 3—the latest evolution of RealTruck’s most popular tonneau cover. Now better than ever, the BAK has redesigned the for improved strength, security, and all-weather performance. The Gen 3 MX4 features alloy-based construction, including heavy-duty aluminum side rails and top panels, reinforced with high-density polymer cores. This updated design delivers a 22 percent increase in strength over the previous generation, making it even more capable of handling daily use, heavy loads, and harsh environments. Security has also been upgraded. BAK’s patented auto-latching system secures the cover automatically when closed. Newly engineered lock components provide added resistance to tampering and forced entry, allowing you to transport your gear with confidence. In rough weather, the Gen 3 MX4 holds strong. Revised EPDM perimeter seals and tight-fit clamps offer the best seal yet, helping prevent water intrusion along the bed rails. A longer dual-action tailgate seal weatherproofs the tailgate while preserving full functionality, whether the cover is open or closed. While the MX4 is built tough, it doesn’t compromise on looks. The flush-mount design gives it a sleek, low-profile appearance, while a textured matte-black finish across all surfaces delivers a clean, subtle aesthetic. Installation is easier than ever with a new click-in rail system that cuts install time by up to 12 percent. Day-to-day use is just as simple—drop the tailgate, unlatch, and fold the cover forward. For complete bed access, fold the cover against the cab without blocking your third brake light. The BAKFlip MX4 Gen 3 is proudly assembled in Missouri using globally sourced materials and backed by a 5-year warranty.

Brand: RealTruck


Style: BAKFlip MX4


Exterior Finish: Aluminum


Material: Aluminum


Lock Type: Tailgate


Brand: ‎RealTruck


Style: ‎BAKFlip MX4


Exterior Finish: ‎Aluminum


Material: ‎Aluminum


Lock Type: ‎Tailgate


Weight Limit: ‎4E+2 Pounds


Manufacturer: ‎BAK Industries


UPC: ‎192631033189


Automotive Fit Type: ‎Vehicle Specific Fit


Model: ‎BAKFlip MX4


Item Weight: ‎1 pounds


Product Dimensions: ‎81 x 23 x 23 inches


Item model number: ‎448337


Manufacturer Part Number: ‎448337


Date First Available: October 12, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Feedback on the MX4 Cover for My F150 2024
Style: BAKFlip MX4 Size: 5' 7" Bed
Hi, I just wanted to share some feedback on the MX4 cover I installed on my truck. I’m extremely satisfied with the product—it looks great, fits perfectly, and feels very solid. The installation was straightforward, and I really appreciate the quality of the materials and design. It not only adds a sleek appearance to the truck but also gives me peace of mind knowing my cargo is secure and protected from the weather. Excellent product—I highly recommend it! Best regards, ... show more
Reviewed in the United States on April 29, 2025 by Adilson R.Teodoro Adilson R.Teodoro

  • Easy install and great fit, very solid and study.
Style: Revolver X4s Size: 5' 7" Bed
Great so far. We took our time and installed the tonneau in about 40 minutes. Looks great. The other comments about some aluminum filings were certainly true. I just used my air compressor and blew them off. There was a bit of a sharp edge on the leading edge of the aluminum channel at the lift gate that I filed down just so I would not accidentally cut myself. Hope the manufacturer reads this, it would be very simple to file this during manufacturing. ... show more
Reviewed in the United States on April 14, 2025 by Greg F. Greg F.

  • Leakfree Hard Bed Cover
Style: Revolver X4s Size: 5' 7" Bed
I was looking for a hard/rigid leak proof cover that didn't take up the interior bed space and this was it. The install went smoothly with two people. The minor adjustments were a little simpler. Install time took approximately 30mins to get it in place and another 15-20 to fine tune and tweak the corners. I highly recommend adjusting the vertical level (trim) at the tailgate to ensure a good seal and prevent leaks along the length of the bed. I did notice some minor leaking along the tailgate corners but was easily solved by adding some of the sealant tape that came in the box. The metal edges (where they come over the tailgate) are sharp and can rub on the finish of the gate. It is recommended to file that down to knock the sharp edge off as well. When rolling the cover up, the straps are secure, and the covers stays put. The "rubber bumpers" included are held on with 3M tape and will come lose. I have lost 1 of the 4 at this point, but seeing as how it won't hit the glass, I'm not terribly upset. When rolling down to secure the covers shut, do make sure that nothing is above the cover, or it will jump the track and not secure. Overall, great cover, easy to install, looks good, and meets the requirements. ... show more
Reviewed in the United States on November 25, 2024 by B Harris

  • high quality, easy install
Style: Revolver X4s Size: 5' 7" Bed
Super simple install, and tough as nails. The flexibility of the rolling vs folding cover while retaining the solid cover look is great. High quality product.
Reviewed in the United States on April 10, 2025 by CT

  • I love this cover! Worth the pricing!
Style: Revolver X4s Size: 6' 7" Bed
To set the stage for why this cover is so great... I previously had a different tonnaeu cover that was a folding one that had 4 panels / 3 folds. To fold it back required me to undo two clamps at the back, secure the clamps, fold it two times, unclamp two clamps at the middle on each side of the truck (requiring me to go around the truck or have a second set of hands), and then fold again... it was a pain in the butt, and the rear clamps would often disengage at the slightest brush or bump so it wasn't uncommon to see a corner flapping in the wind. My girlfriend absolutely hated the old cover, particularly whenever we'd require folding it to get at stuff that was shifted to the front side of the bed. So I bit the bullet for the Revolver X4s, a bit pricier than I wanted to spend but I'd seen another truck owner with the similar X2 and I decided it was the cover I wanted as it hit all the checkmarks. It's exactly as advertised. It's solid, and I feel it's more secure and secures my stuff in my truck bed better than the old vinyl cover. It's easy, I can open and close it entirely myself with one hand, and it makes it so much easier to access the full contents of the truck bed. It's beautiful and goes very well with the truck. I definitely would recommend to anyone else looking for a cover. ... show more
Reviewed in the United States on July 13, 2024 by PCTechYoda

  • Great Product, Great Customer Service
Style: BAKFlip MX4 Size: 5' 7" Bed
Great product, easy installation. I had a couple of small issues which were taken care of immediately. Really good customer service.
Reviewed in the United States on May 2, 2025 by Amazon Customer

  • Do Not Purchase-Does not Work Properly & Lack of Quality
Style: BAKFlip MX4 Size: 5' 7" Bed
DO NOT BUY! Do not buy this product. I have owned 3 "BAKflip" brand products on three different vehicles and it appears now they sold the Real Truck. The topper material has gone down hill, the rail design does not work (quality is terrible, made out of some sort of plastic), and the lid does not latch the way it should. It would not waste your money and time on this unfortunately. The original "BAK" product was excellent, the minute I pulled this out of the box and felt the quality, saw the rebranding, and attempted the install, I knew something was wrong. Extremely disappointing to say the least. Returned the product and now in search of a new brand for my truck. ... show more
Reviewed in the United States on March 23, 2025 by Sublimesig1855

  • easy to install great fit
Style: BAKFlip MX4 Size: 6' 7" Bed
quick assembly to the bed of the truck works great keeps items dry
Reviewed in the United States on April 13, 2025 by Clay Kramer

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